Abstract: A temperature control apparatus includes a temperature control branch connected to a feed line for a temperature control medium, a pump system including a pump for conveying the medium, a pump open-loop or closed-loop control device for controlling the output of the pump system, a throttle device having a variable degree of opening for throttling a quantitative through-flow of the medium in the temperature control branch, and an open-loop or closed-loop control device with the degree of opening of the throttle device as a setting value and with a control variable from the group: degree of opening of the throttle device, temperature, temperature difference, through-flow, pressure or a physical value to be derived from that group. The pump open-loop or closed-loop control device is configured to control an operation of the pump to adjust the delivery output of the pump system depending on the degree of opening of the throttle device.

Abstract: The disclosure concerns methods for molding a polycarbonate containing plastic, the method including: (a) injecting a composition into a mold, the composition including (i) about 49 wt % to about 97.9 wt % of polycarbonate, (ii) about 2.0 wt % to about 50 wt % of a polycarbonate-polysiloxane copolymer, and (iii) about 0 wt % to about 1.0 wt % of at least one release agent; and (b) releasing the composition from the mold. The mold includes at least one draft angle of about 0.1 degrees to about 7 degrees. The polycarbonate blend includes a melt flow volume rate (MVR) of at least about 25 cm3/10 min as measured according to ISO 1133 at 300° C. and 1.2 kg.

Abstract: In order to reduce oscillations in process variables of an injection molding process, a variable-gain proportional-integral-derivative (PID) controller is utilized to control one or more of the process variables. The injection molding system may also include a tuning controller to automatically tune at least one of the proportional, integral, or derivative gains within a mold cycle. The tuning controller may obtain sensor data that monitors the operation of the injection molding machine to determine an adjustment to at least one of the proportional, integral, or derivative gains. The tuning controller may adjust the gains of the variable-gain PID controller in accordance with the determined adjustment to the at least one of the proportional, integral, or derivative gains.

Abstract: In a mold, at least one of a lower mold and an upper mold includes a coolant supply passage through which a liquid coolant is supplied to an inner space of a recess, and the mold includes an air escape passage through which air in the inner space of the recess is discharged upward.

Abstract: The present disclosure relates to a method for manufacturing a sensor cap with at least one main body and a membrane for an optochemical or electrochemical sensor for determining and/or monitoring the concentration of an analyte in a measuring medium, a corresponding sensor cap, and a corresponding sensor. In one aspect of the present disclosure, a permeable membrane is provided with a surface for contacting the measuring medium, as well as a main body with at least one sector for connecting to the membrane. At least part of the membrane and main body are welded, wherein the membrane is at least partially applied to the at least one sector of the main body and a connection between the main body and membrane is sealed against the measuring medium.

Abstract: A resin molding mold in accordance with the present application is a resin molding mold for molding a resin molded product. The resin molding mold includes a molding mold and a mirror-surface coat layer formed on a mold surface of the molding mold. The mirror-surface coat layer is formed by a thermosetting resin having a thermal conductivity in a range from 0.10 W/(mK) or more to 0.99 W/(mK) or less. The thickness of the mirror-surface coat layer is set in a range from 1.0 ?m or more to 30 ?m or less, and is preferably set to 20 ?m or less. The surface of the mirror-surface coat layer is provided with a flat-surface maintaining part formed into a substantially flat surface.

Abstract: Disclosed is a molding unit for the forming of a container provided with a hollow recess toward the interior of the container, this forming unit including: a mold provided with a lateral wall defining a cavity having the impression of at least one part of the container and incorporating a fluid circuit for thermal regulation of the wall, which comes out on an upper surface of the mold; and a boxing device. The boxing device includes: an insert mounted in translation relative to the lateral wall; an actuator integral with the insert; and a pneumatic circuit for controlling the movement of the piston, which includes at least one primary duct for supplying the chamber, which comes out on the upper surface of the mold.

Abstract: Polymer-based molds are described. The polymer-based mold includes a first portion comprising a first material having a glass transition temperature (Tg) lower than about 80 ° C.; and a second portion comprising a second material having a Tg higher than about 80 ° C., wherein the second portion at least partially covers the first portion, the second portion is thinner than the first portion and faces a cavity in the polymeric mold.

Abstract: A controller of an injection molding machine stores used/unused information in relation to each of the maximum number of controllable servo amplifiers, outputs an interruption request signal requesting power interruption in a lump to apart of or all of these plurality of servo amplifiers, and receives a power interruption confirmation signal confirming that the motor power of the servo amplifiers is interrupted. Further, the controller determines, on the basis of the interruption request signal, the power interruption confirmation signal and the used/unused information, whether or not interruption driving the servo motor is normally operated.

Abstract: An injection molded article obtained by injection molding a thermoplastic resin composition comprising 100 parts by mass of a thermoplastic resin and 50 parts by mass or less of at least one of a filler and a colored metallic pigment, wherein at least one weld exists, and a long diameter of 95% by mass or more of the filler existing within a cross-sectional depth of 50 ?m or less from a surface of the weld is parallel to the surface of the weld.

Abstract: A method of temperature control of a shaping tool or components of a shaping working machine is performed by a temperature control medium disposed in at least one temperature control branch of a temperature control system. A previously ascertained relationship between geometrical data of the at least one temperature control branch and through-flow amounts of the temperature control medium is provided, and a reference through-flow amount is set by the previously ascertained relationship for the geometrical data of the at least one temperature control branch.

Abstract: A method for making an extruded insulator for a spark plug in a manner that minimizes pores, relics and/or other defects in the insulator microstructure so that the overall dielectric strength or performance of the insulator is improved. The method may be used to manufacture an extruded insulator that avoids many of the drawbacks associated with such defects, but also has a stepped internal bore for receiving a center electrode. In one embodiment, the method uses a multi-phase extrusion process to extrude a ceramic paste around an elongated arbor and form an extruded section, and then removes the arbor from the extruded section to reveal a stepped internal bore.

Abstract: In a method of monitoring an apparatus for temperature control media supply of a tool of an injection molding machine, the apparatus for temperature control media supply has a feed and a return, between which at least one temperature control conduit is arranged, wherein at least one through-flow sensor is arranged. At least one pressure drop is measured in the at least one temperature control conduit. At least one hydraulic resistance and/or at least one resistance change in the at least one temperature control conduit is calculated on the basis of at least one volume flow measured with the at least one through-flow sensor and on the basis of the at least one measured pressure drop, and the at least one hydraulic resistance and/or the at least one resistance change is visually represented.

Abstract: A chemical mechanical polishing pad is providing containing a polishing layer having a polishing surface; and, an endpoint detection window; wherein the endpoint detection window comprises a reaction product of ingredients, comprising: an isocyanate terminated urethane prepolymer having 2 to 6.5 wt % unreacted NCO groups; and, a curative system, comprising: at least 5 wt % of a difunctional curative; at least 5 wt % of an amine initiated polyol curative having at least one nitrogen atom per molecule and an average of at least three hydroxyl groups per molecule; and, 25 to 90 wt % of a high molecular weight polyol curative having a number average molecular weight, MN, of 2,000 to 100,000 and an average of 3 to 10 hydroxyl groups per molecule. Also provide are methods of making and using the chemical mechanical polishing pad.

Abstract: A method for the manufacture of container preforms in which recycled plastic material is subjected to at least one heat treatment in a recycling machine before it is transferred to a preform machine, where at least a major portion of heat introduced into the plastic material during its heat treatment and storage is transferred from the recycling machine with the plastic material into the preform machine. In a plant embodied for carrying out the method, the recycling machine is coupled with the preform machine either directly or via at least one intermediate storage such that at least a major portion of heat introduced in the recycling machine during a heat treatment of the plastic material can be transferred with the plastic material into the preform machine.

Abstract: A fastening component is a molded article of a mixture in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, wherein the thermoplastic resin has a melting point of between 150 and 200° C., and wherein when the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100 mass %, the mass % of the cellulose fibers included in the mixture is greater than 20 mass % and less than 60 mass %. When the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100%, the mass % of the cellulose fibers included in the mixture is preferably equal to or greater than 30 mass % and equal to or less than 50 mass %.

Abstract: A system for making PET objects including a means for reacting a first PET precursor and a second PET precursor to produce a PET melt; a means for flowing the PET melt to a valve having at least two outlets; a means for flowing the PET melt from at least one of the at least two outlets to at least one die forming line and one pelletizing (cutter) line. A means for controlling individually the mass flow of the PET melt in each of the at least two system lines independently of the other and a means for forming the PET objects from the PET melt. The control scheme is a combination of a feed forward system as well as a feedback loop. The entire control scheme is part of the overall system PLC. The fine tuning of the pressure at the outlet of the die forming loop is controllers to less than +/?1 bar to obtain maximum control of formed part.

Abstract: The injection molding device of the present invention is provided with a supply pipe which supplies a heat medium to a mold, a discharge pipe which discharges the heat medium from the mold, a mold temperature adjustor to which the supply pipe and the discharge pipe are connected to adjust the temperature of the mold, and a discharge rate adjusting unit which is provided with a variable flow control valve installed on the discharge pipe to adjust a flow rate of the heat medium, a discharge pipe variable flow control valve bypass pipe for bypassing the variable flow control valve and a discharge pipe bypass on-off valve installed on the bypass pipe to change a flow rate of the heat medium and which is installed at a position upstream from the mold temperature adjustor on the discharge pipe.

Abstract: There is provided a method for manufacturing a three-dimensional shaped object, the method comprising the repeated steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam, wherein a part of a surface portion of the three-dimensional shaped object is formed as a low-density solidified portion whose solidified density ranges from 50% to 90% so that an application of pressure can be performed by a gas flowing through the low-density solidified portion.

Abstract: An injection molding apparatus includes a stationary mold and a movable mold, and heats and cools at least one of the stationary mold and the movable mold when forming a molded product by injecting resin into a cavity formed by the stationary mold and the movable mold. The at least one mold to be heated and cooled is separable into a first mold member and a second mold member. When heating the at least one mold, the first mold member and the second mold member are separated from each other so that a space into which thermal fluid is to be injected is formed between the first mold member and the second mold member.

Abstract: A method for producing a brake assembly (22) including friction material (24) molded to a backplate (26) using an improved receptacle plate (20) is provided. The backplate (26) includes openings (30) each having an opening diameter (Do). The receptacle plate (20) includes pins (28) extending transversely from a receiving surface (34). The method includes aligning the openings (30) of the backplate (26) with the pins (28) of the receptacle plate (20). Each pin (28) has a pin diameter (Dp) less than the opening diameter (Do) of the aligned opening (30). The friction material (24) is molded to the backplate (26) by heating the friction material (24) and the receptacle plate (20), and forcing the friction material (24) through the openings (30) of the backplate (26). The pins (28) extend into a center portion (32) of the friction material (24) and improve the degree of curing of the friction material (24).

Abstract: The present invention includes an injection molding factory system and an associated facility that comprises a building having a series of injection molding machines array on a first floor with the resin supply placed on a mezzanine level. The injection molding machines are arranged with automatic product conveyors to move injection molded product from the injection molding machines without the need for human operators or separate vehicles.

Abstract: The present invention relates to a method and a device for producing a preform with a base geometry optimized for the subsequent stretch blow molding. The preform produced in the injection mold is removed in a cooled removal sleeve and cooled in the shaft by intensive contact cooling, while to the greatest extent no cooling contact is made with the domed preform end due to a special contour of the cooling sleeve. On account of the re-heating of this domed end that is possible as a result, the latter can be mechanically deformed into a new geometry that is more advantageous for the blow-molding process, and consequently also influenced in the wall thickness. In the subsequent blow-molding process, such a deformed preform has primarily the advantage that the polymer material distributed better in the bottle can lead to considerable material savings and to bottle bases of a higher quality.

Abstract: The resin injection molding method of the present invention is a method for molding resins inside a cavity formed within a mold. The method comprises injecting resins into the cavity through a plurality of paths installed so as to be openable and closable and optionally maintaining the resin inside the cavity at a pressure; closing each of the plurality of paths such that the resins injected from each path converge, there being a time difference between when a first path and a second path of the plurality of paths are closed; and solidifying at least the resin which is injected from the path closed earliest with a crystallinity greater than or equal to a predetermined crystallinity degree.

Abstract: Disclosed is a mold for a construction structure which includes a plurality of hollow mold units arranged in a predetermined 3D pattern; a plurality of connecting units detachably connecting the mold units and communicating the mold units; and an outside wall fixing and supporting the outermost mold units in the mold units.

Abstract: A molding method for obtaining a polylactic acid stereocomplex resin composition solving a limitation according to application of a typical polylactic acid resin composition. The molding method includes an environmentally-friendly material, and having excellent heat resistance and impact resistance. The polylactic acid stereocomplex resin composition includes about 40 to about 91.9 wt % of a crystalline poly L-lactic acid, about 3 to about 50 wt % of a crystalline poly D-lactic acid, about 5 to about 30 wt % of an impact modifier, and about 0.1 to about 2 wt % of a nucleating agent, and a method for molding the same.

Abstract: The present disclosure relates to a tool such as an injection moulding tool or an embossing tool. A heating device including a stack of layers is provided for heating a tool surface. The stack may include a coil carrier layer with a number of wound coils for generating a magnetic field, and a conductive top layer, being adjacent to the tool surface currents are induced in the top layer to heat the surface. Efficient heating may be provided by solutions involving low resistivity layers that lead currents to the top layer without themselves developing heat to any greater extent. A conduction frame device can be provided beneath the top layer and around the perimeter thereof to provide reliable contact with a backing layer.

Abstract: The invention relates to thermoplastic compositions comprising A) 30.0 to 100.0 parts by wt. of at least one aromatic polycarbonate, B) 0.0 to 50.0 parts by wt. of a rubber-modified graft polymer and/or vinyl copolymer, C) 0.00 to 50.00 parts by wt. of polyester, D) 5.0 to 50.0 parts by wt. of at least one inorganic filler having a particle shape selected from the group including spherical/cubic, tabular/discus-shaped and lamellar geometries, and E) 0.00 to 5.00 parts by wt. of further conventional additives. The invention further relates to thermoplastic shaped articles having a high surface quality, high dimensional stability and high heat distortion temperature, as well as thermoplastic moulding compositions and a process for the production of the shaped articles. The present invention moreover relates to the coated finished parts produced from the thermoplastic shaped parts.

Abstract: A method for injection molding a thermoplastic composition that contains a polyarylene sulfide and an aromatic amide oligomer is provided. Due to the improved crystallization properties imparted by the oligomer, the present inventors have discovered that the thermoplastic composition can be molded at lower temperatures to still achieve the same degree of crystallization. In addition to minimizing the energy requirements for the molding operation, such low mold temperatures may be accomplished using heating mediums that are less corrosive and expensive than some conventional techniques.

Abstract: A connector housing (1) is molded by using a resin material essentially containing a polybutylene terephthalate reinforced with fibers, the polybutylene terephthalate having properties with a flexural modulus of 5000 to 7000 MPa as measured by ASTM D790 and a bar flow length of 80 to 130 mm.

Abstract: The present invention is on injection mold with cooling and heating passage which can form cooling and heating passage close to forming space in the inside of mold body and easily design cooling and heating passage in forming space with complicated trajectory. Injection mold with cooling and heating passage consists of lower mold and upper mold forming blowed forming space by combining said lower mold on the top of said lower mold, provided that said lower mold or said upper mold consists of mold body in which forming space is created on one side so that melted resin is injected and formed; connecting groove depressed towards said forming space from the opposite side of the side with said forming space created; and sealing kit which is inserted into said connecting groove in separation from the end of forming space of said connecting groove and creates cooling and heating passage 60) in said separated space.

Abstract: A urethane rubber cleaning blade, wherein a surface of a contact portion of the cleaning blade that comes into contact with a member to be cleaned has a Young's modulus (Y0) of 10 mgf/?m2 or more and 400 mgf/?m2 or less, the ratio (Y50/Y0) of the Young's modulus (Y50) of an internal portion of the cleaning blade 50 ?m spaced apart from the surface of the contact portion to the Young's modulus (Y0) is 0.5 or less, and the average rate of change in Young's modulus from the surface to an internal portion of the cleaning blade 20 ?m spaced apart from the surface is greater than or equal to the average rate of change in Young's modulus from the internal portion of the cleaning blade 20 ?m spaced apart from the surface to an internal portion of the cleaning blade 50 ?m spaced apart from the surface.

Abstract: In an aspect, an injection molding machine is provided and incorporates a mold block with a plurality of sides including an injection side at which hollow parts are formed in mold cavities, a first post-mold cooling side whereat the hollow parts are cooled, and a part transfer side where parts are transferred out of the mold block. Optionally additional post-mold cooling sides are provided. A takeout structure is provided to remove the hollow parts from molding cores on the injection side, to transfer the hollow parts to the first post-mold cooling side, and to subsequently transfer the hollow parts to the part transfer side. The takeout structure holds the hollow parts by their neck portions and cools their neck portions.

Abstract: A device for producing a silicone rubber cupping appliance is provided. The device includes a nozzle, an internal mould core, a separable slide comprising at least two separable slide blocks; and a blowing-demoulding unit. A mould cavity used for moulding the silicone rubber cupping appliance is formed between the slide and the internal mould core. One end of the nozzle is connected to a channel that transports liquid silicone rubber material, and another end of the nozzle is connected to the mould cavity. The blowing-demoulding unit is connected to the mould cavity through a blow duct opening which is set at a contact surface of the internal mould core and the mould cavity.

Abstract: A die having a plurality of cavities and a temperature sensor for acquiring a temperature value in which the number of the cavities is larger than that of electrothermal conversion elements. When viewed from a direction perpendicular to the surface of a parting line, all cavities and a temperature sensor are arranged in a region occupied by the electrothermal conversion elements. Interval between the outlines of the cavities is smaller than the minimum interval between the outline of the cavity and the electrothermal conversion element, and the shortest distance between the electrothermal conversion element and the temperature measuring portion of a temperature measuring element is shorter than the minimum interval between the outline of the cavity and the electrothermal conversion element.

Abstract: A method for injection molding a thermoplastic composition that contains a polyarylene sulfide and a boron-containing nucleating agent is provided. By selectively controlling certain aspects of the polyarylene sulfide and nucleating agent, as well as the particular manner in which they are combined, the crystallization properties of the resulting thermoplastic composition can be significantly improved. This allows the “cooling time” during a molding cycle to be substantially reduced while still achieving the same degree of crystallization. The cooling time can be represented by the “normalized cooling ratio”, which is determined by dividing the total cooling time by the average thickness of the molded part.

Abstract: The present invention is directed to a debridement and/or implant cleaning tool (1) in which the means for cleaning (4) is made of a biodegradable material. Thus, if parts of the means for cleaning (4) come loose during use, these will be degraded by natural processes in the body and will not remain in the body and cause negative body reactions.

Abstract: An injection molding apparatus is provided. The injection molding apparatus includes a mold, a plate heater mounted to the mold to heat the mold, and a cooling passage provided above or below the plate heater.

Abstract: The present invention relates to an appliance having a micro-pattern (190b) for displaying a pattern or a character, and a method for fabricating a structure having a micro-pattern (190b), and more particularly, to a method for displaying a pattern or a character more effectively. To achieve above object, the appliance of the present invention includes a body, a structure provided to an outside or an inside of the body, and a micro-pattern (190b) for changing a light incident thereon from an outside of the micro-pattern to a light of a predetermined color to display a predetermined character or a predetermined pattern on the structure.

Abstract: A method and injection machine for producing a hollow product, such as a urisheath, use of the method for producing a urisheath as well as the urisheath. The machine comprises an annular cavity for receiving a silicone material. The material is injected in a cold state via a coldrun nozzle (20) and cured by heat in the cavity. The cavity has a narrow cross-sectional area over a substantial portion of the cavity and the cavity is connected to a venting area (13). The cavity has an annular enlarged portion (18) at the proximal portion of the cavity, arranged adjacent said inlet (24) and a groove (14) at the distal portion of the cavity. The narrow cross-sectional area has a decreasing radial dimension towards the distal portion of the cavity. The surface of the cavity is grit blasted.

Abstract: Provided is a method of manufacturing a resin molded gear, which is to be integrally formed by injection molding, and includes: a tooth portion formed along an outer peripheral surface of a rim; a web extending along an inner peripheral surface of the rim; and a gate portion arranged at a boss, which joins to at least part of the web and is formed on a core portion located at a center axis, the method using a synthetic resin having a melting temperature of Tm° C., the method including: injecting and loading the synthetic resin molten at the melting temperature of Tm° C. into a cavity of a mold for forming the resin molded gear; and setting, when the gate portion is solidified, a thickness center temperature T1 of the web to (Tm?20)° C. or more to (Tm+20)° C. or less and a surface temperature T2 of the tooth portion to (T1?50)° C. or less.

Abstract: In an embodiment, a support arm comprises: a thermoplastic material and a filler. A cross-section of the support arm taken along a line from an inner edge to an outer edge of the support arm comprises a modified I-shaped, a I/U-shaped, or a U-shaped cross-section.

Abstract: The present invention discloses a thermoplastic polyurethane which is comprised of the reaction product of (1) a hydroxyl terminated polyester intermediate, (2) a polyisocyanate, and (3) a glycol chain extender; wherein the hydroxyl terminated polyester intermediate is comprised of repeat units that are derived from 1,3-propylene glycol and a dicarboxylic acid; wherein the hydroxyl terminated polyester intermediate has a number average molecular weight from 500 to 10,000; and wherein the thermoplastic polyurethane includes hard segments that are the reaction product of the polyisocyanate and the glycol chain extender. This thermoplastic polyurethane is unique in that it has a greatly reduced tendency to bloom. This is highly desirable in applications where high clarity is desired because blooming causes articles containing the thermoplastic polyurethane to be hazy or foggy in appearance.

Abstract: A liquid crystalline polyester composition contains at least 100 parts by weight of liquid crystalline polyester having different structural units and 10 to 100 parts by weight of glass fiber, wherein the glass fiber has a weight-average fiber length (Mw) of 200 to 500 ?m, and content of specific glass fiber having fiber length of not less than 1500 ?m is 0.1 to 5.0 percent by weight to a total amount of the glass fiber.

Abstract: The present invention is an uncoated housing in which a molded product formed from a thermoplastic resin composition (D) containing 20-60% by mass of an acetone insoluble resin component (A), which contains a rubber component (a) with an average particle size of 0.05-0.3 ?m and has a coefficient of linear expansion of 11×10?5-20.5×10?5, 40-80% by mass of an acetone soluble resin component (B) (here, (A)+(B)=100% by mass), and a colorant (C), with (1) the acetone soluble resin component (B) containing 6.0-45% by mass of an unsaturated nitrile monomer derived component and (2) 2-20% by mass of a component with a molecular weight of 70,000 or less by gel permeation chromatography (GPC) measurements being contained in the acetone soluble resin component (B). On the basis of JIS K7105, the L* value for this uncoated housing is 13 or less, the luster 60-120%, and the haze value 30-90%.

Abstract: Compression molded articles containing a polymer component and optionally distributed therein between about 1% and about 45% by weight of a glass bead or fiber reinforcing component based on the weight of the finished composite article, wherein the polymer component contains between about 80% and about 100% by weight of HDPE based on the weight of the polymer component, in which at least about 20% or more by weight of said HDPE is post-consumer HDPE. Plastic panels, uses thereof and methods of manufacturing are also disclosed.

Abstract: The injection molding method for injecting a resin into a cavity formed within a mold is provided with a heating step in which the temperature of a cavity surface forming the cavity of the mold is heated to a temperature equal to or higher than a heat distortion temperature of the resin and an injection step in which after the heating step, during a decrease in temperature of the cavity surface of the mold, the resin is injected into the cavity.

Abstract: There is provided an optical recording medium substrate including a polycarbonate in which an average molecular weight is in a range from 15000 to 16000, and mass per unit volume at 25° C. is in a range from 1.1930 g/cm3 to 1.2000 g/cm3.

Abstract: The outer circumferential surface of a bottom 4 of a preform 1 and a lower site 3a of a trunk 3 continuous with the bottom 4 is mechanically brought into intimate contact with a cooling pot 16 to undergo reliable cooling. The trunk 3, excluding the lower site 3a of the trunk 3 continuous with the bottom 4, is heated to a predetermined temperature by a heating block 17. When blow-molded, the so treated preform 1 can provide a container having a bottom of a desired thickness and having a uniformly stretched thin-walled trunk.

Abstract: The molding method of the invention is a low-temperature, liquid-phase, injection molding process using an externally heated mold. This molding process is ideally suited for production of limited quantities of molded parts, as comparatively low cost molds can be used. The molding composition used in the invention is a mixture of a carrier and binder component and a powdered polyethylene component. The carrier and binder component can be a very low density polyethylene, petroleum jelly, hydrocarbon waxes, liquid hydrocarbon oils, or mixtures thereof. The powdered polyethylene component is finely subdivided polyethylene, preferably ultra high molecular weight, having a low melt index, at least no greater than 30. The carrier and binder component is used in sufficient quantity to provide a thixotropic mixture with a consistency of toothpaste, typically having a stirred viscosity up to 30,000 centipoise at the injection temperature of the molding process.